Hoisting tower apparatus



` April 217, 1948. H. A. WAGNER ETAL HOISTING TOWER APPARATUS 4Filed June 24, '194e v 4 Sheets-Sheet l AWO/QNEY April 27, 1948. H, A, WAGNER ETAL I 2,440,495

HoIsTmG TOWER APPARATUS Filed June 24 1946 f 4 sheeis-sheei 2 April 27, 1948.

H. A. WAGNER ET AL.

HOISTING TOWER APPARATUS 4 Sheets-Sheet 5 Filed June 24, 1945 A Vo/VE V HOISTING TOWER APPARATUS Filed June 24, 194e Y, v4 sneets-sheetfz lmatically dumping the .bucket Patented Apr. 27, 1948 vFFI-CE HaroldA. Wagner and Gustave H. Wagner,

Portland, Qreg;`

Application June 24, 19.46,'Serial No..678,'842 10 Claims. (Cl. 214-120) l The present invention relates to material hoisting towers such as may be used .for elevating materials in building construction. It is i more particularly concerned with an elevator tower arrangement suitable for pivotal mounting on a vehicle upon which it may readily vbe transported in a horizontal inoperative position and quickly elevated to -avertical operating position.

`Hoisting tower apparatus of the type to which this invention relates includes a hopper mounted on the front of the tower and which is `required to be removed therefrom as the tower is lowered to the horizontal position for transportation in order to reduce the overall height of the apparatus to a minimumto satisfy highway elearance limitations. 'I'he hopper when removed from the tower is separately supported upon the vehicle, usually by chains underneath the overhanging tower end. Since the hopper is rela"v tively heavy and cumbersome it is rather difflcult to handle and much time and effort Vis ordinarily required for removing it from the tower preparatory to transportation and for `remounting it on the tower preparatory to usage. In accordance with the present invention physical removal of the hopper from the tower is not required `and it can be shifted to an inoperative position upon lowering of the tower simply by removal of a pair of retaining pins. The taking 30 down and setting up procedures for the tower is thus very greatly simplified and expedited.

A general object of the invention is to provide a new and improved hoisting `tower `structure .provide a new'and limproved open facedhoisting tower arrangement mountedon a vehicle for movement betweenl a verticalioperative and a .horizontal transporting position and includin'ga hopper pivotally mounted across the face of theitower andadapted to be pivote-d intothe lower end of the tower structure on loweringjthe tower to `a 'horizontal position.

` greater particularity in 'Further objects andadvantages .of the invention will become apparent .from the following description of the invention, taken in connection with the acconnianying drawings, while the features of .novelty will be pointed out, with the appended claims.V In'the drawings: i 1

Fig. 'l is a front elevational view ofthe tower structure in accordance with` one form ofthe i invention shown mounted upon a portable C on- "oretej'mixei Fig. 2 is a side elevationofthe structure shown in Fig. l; Fig. 3 is a side elevaj tion. ofp` the.` structurebf Fig. *1 but with-the Huelma` of Fig. 2:

which is simple and compact in design, and'read- -35 ily adjustable to `meet the for such apparatus.

A more specific `object is to providea new and improved elevatortower. structure. including improved means forraising vand lowering the various requirements tower structure.

A still further .object of, the invention is. to provide a hoisting tower arrangement including a material elevating 'bucket and a material receiving hopper mountedon one side of the tower and havinga new and improved means for autoas it is moved upwardly past the hopper. y

A further object of the invention is to Vprovide anew and improved hoisting 'tower including a hopper adjustably mounted upon the face of the tower and adapted to be swung to an inoperative position within the tower when `the latter is moved lto"thehorizonta1 condition.

`A stili further .object of, the invention is to eej tower shown in fai horizontal transporting position; Fig. V4 is a cross sectional view taken along Fig. j5 is a view taken along K 1 Fig.-`6 vis a view taken along line "E5-6 of Fig. 4; Fig. 7 is a view taken along line 1-`1 of Fig. 6; Fig. 8 is a view taken along line 8-8 of Fig. 2; Fig. lQ'is `a view taken along line lll-9jof Fig. 8.

In accordancewiththe illustrated embodiment of the invention the towerjstructure' comprises a plurality of paralleluprights defining an open faced llongitudinal 'elevator shaft having a hoist bucket mounted for `movementAtherewithin. The tower is adapted to be pivotally `mounted intermediate its endsup'on /a supporting 'vehicleand is adjustable between a *horizontal inoperative line 5-5 of Fig. 4;

position and-fav vertical operative 'positiorn` A hopper isradjustably mounted upon the front 4`for engagingthe bucket as it'moves upwardly within "the tower to cause dumping of the 'bucketcontents 'into'the hopper.A The hopperis: so" de.. signed and so `mounted vupon `the tower that upon movement ofthe *towery to Athe horizontal position, the hopper-may beswungftoan inoperative position within thelower end -of the tower, Vthus reducingth'e'overall height `of the 4apparatus to Alill la minimum lfor traveling and' with a minimum of effort on "the-part of the operator.V "A novel Varrangementfis also 1provided whereby tlietower -can be quickly raised and lowered with :a minimum of preparatory steps required to'bejtaken.

The elevator 'structure will bespeciflcally-def 'jwithin nieuwer. l

-vfer'sely'extending channel'beams ythe lower. end ofthe c Vbucket is 3 scribed as it may be applied to a mobile concrete mixer although it is to be understood that the mixer is merely representative of any vehicle upon which it is desired to mount a portable material elevator structure.

With reference to the drawings, and particularly to Figs. l, 2 and 3, the rear portion of a mobile concrete mixer is indicatedgenerally at I. The' longitudinal tower 'structure is suitably pivoted intermediate its ends at'some point such as 4 upon an upper rear portion of the mixer. When in the vertical position the y may be attached by removable pins'to a pair of brackets 5 secured vehicle adjacent the lower end thereof. For low-rk ering the tower, the pins are removedafter which for supporting the hopper in lower end of the towerv to the opposite vsidesof the the tower may be pivoted about the bearing 4to" the horizontal position shown in Fig. 3. f

The tower structure is formed of parallel front uprights I2 and I3and rear uprights I4.and fs'pacedatright'anglefs with respect to 'each other vso as to define a 'substantially' rectangular elevator shaft therebetween.l The rear uprights are rigidly secured together `by means of suitably uprights I2 .andV I3 are rigidly secured to the rear uprights I4 andI5, respectively,'by a plurality of suitably spaced cross members I9 and 26 extending therebetween. Diagonal braces mayY be provided as desired between theuprights' v -.around.the three sides such as is shown. The front side `of the tower,or"the space between the uprights I2 and I3 is open substantially throughout the full length thereof, or'at least, throughout the full length of travel-of the bucket Referring to Figs.,4. to '7.a bucket 22 is mounted within a carriage comprising a framework includingfa `pair-of slides 23, the slides being conf nected; together at i theirH upper v l 24. .The bucket 22 is ypivotally mountedwithinthe carriage as at 26- on the ends of bracket arms 21 secured to arriageslides 23. It will Abe observedthat the pivotalsupport 26 for the bucketis thussomewhat forward of the center 74VQfgrayity thereof so Athat theupper end of the bucket is normally biased toward the rear side of the tower. 4The bucket is maintained in the upright positionwithin the supporting carriage, Y by means of stops Y upwardly fromthe top of the bucket and engagying withjthefront side of the cross beams 24, of the bucket Carriage-f l Y :Themovement of the bucket'within the tower Yis guidedV by a pairof rails 36 and 3I secured to 28 secured to and extending lthe inner sides of the tower in parallel relation with `respect to the uprights. -The guide rails are shownin the form of Tirons, the at sides being welded yto the transverse/brace members I9 and w26of -the tower ywith the webs of the T irons extendingtowards-.each-other and deining bearingsurfaces for thebucket carriage slidesk 23. Y The ,bucketv is adaptedrto be raised Vand lowgered'within thetower bymeans of a cable 32 at- 65' f taehed to the bucket carriage as at,33, the cable extending to thetop of the towerl and trained y-overpulleys 34 and 35. From pulley 35, the cable f extends down outside-"the tower to the pulley l36vv Yadjacent thelower end thereof, v:from whence it' travels beneathI the idler 31 on the vehicle to the winch drum. (not Shown ..hepper4, 8 for 'receivingthe contents of the o unted upontheY front side of` the.

tower and is supsrteaiby'meansqfa pair er" Ysecured to the sloping rear wall of the hopper and a transverse member 46 to the ends of which are pivotally secured a pair of arm extensions 41 adapted when in a horizontal position to be secured by pins 48 between cooperating lugs welded to the lower ends of slides 4I as illus- Utrated more clearly in-detail views, Figs. 8 and 9.

The hopper may be' adjusted to any predeterminedposition upon the face of the tower by connecting in any suitable vmanner to the bucket carriage Chains 52 are then employed to hold *Y A e v i the hopper in the adjusted position by hooking spaced rtransverse members I6 while` the front'zs ing a discharge chute 54 at the lowermostjend thereof with a suitable closure gate 55, for controlling the ow of material therefrom. The

mounted ends by transwidthof the hopper is greater than the width of the bucket 22 but ofless width than the distance between the front uprights I2 and I3.

Means are'provided for effecting automatically the dumping of the contents from the bucket 22 into the hopper 40 as the bucket carriage is moved upwardly in the `tower past the hopper. Attached to the outer surface of one side wall of the bucketv adjacent the forward edge portion thereof is a curved guide flange 56. Fivotally mounted upon the-A same relative side of the hopper adjacent the top thereof is an arm 51 having a roller 58 at the end thereof. Arm 51 is adapted to be fastened to the top of the hopper by means including a removable pin 60 and held thereby in such a position that vthe roller 58 lies in the path .of travel of the guide flange i 56. Upon upward movement of the bucket, roller 58 will engage and ride upon guide rail 56 so that the bucket will be caused to tilt forwardly through the open face of the tower to a dumping position abovethe hopper in the manner Vshown more clearly by dotted lines in Fig. 5.V Mounted upon vthe upper rear edge of the hopper are a pair of rollers 6I on which ,the side of thebucket while the bucket is in adumping position and across rwhich the .bucket will freely roll throughout the dumping Aoperation and during `the time the bucket is being returned to its "normal upright lpositionr withinthe carriage as the latter` is lowered after .the contentsr of: the

bucket haye been discharged. When the operator'desires to elevate the bucket past the hopper as forthe vpurpose of positioning the bucket for lowering the hopper from the adjustedV elevated position, pin 60 is removed and the arm 51 is swung away 'from the tower to a position as v l'point .above the hopper, e

.tened to the carriage and. loweredr to 'a point shown in Fig. 3. The bucket is thenraised to a hopperV 40 suitably faswhere slides 4I'v engage stops 64 attached to the 4lowererids of the uprights I2 and I3.

In Fig. 3, the tower is shown in the lowered or bottom wall slopes downvwardly and outwardly from the tower, and havhorizontal; inoperative `position as for traveling. In `-ortter tomaintain the overallY height. ofthe `structure in. this 'position at a minimum, `the hopper "wis first. lowered toit-'ne bottom, ofthe towerA structure whiie'tne latteris `in a vertical f position until slides "El engage stops fas. described' above. PinsI 48' arethen rem'oved` so that the arms.v 41' on 'the hopper :supporting iramelcan `be dropped to a vertical position shownbydotted lines in Fig. 9. As thetowcr is pivotodtjo. a

horizontal positiomthe mopperen 'will swine. upon its'tnnnuons 472 andbetween uprignts |52 and. f3

into the vtower 'structure until 'as 'the tower appreaches thehorizontal,postioh'tho rear-wall oi 1 thehopper. wllcontactstop min Lthe'form of a tubular member extending between rear uprishts nanars. n y u vMeans for elevating the. tower to the vertical operative position comprises azpair of cables l0,

one end of eachbeng se'ouredto the lower onfd of the, tower structure as. aftf'l and trained trom there over idler pulleys mounted on theiflower portion of'the vehicleA L, and another pair of idler lpulleys 83. mounted onthe innersides of "the tower structure between the uprights on opposite sides of the, tower. The. other ends of the cables arev provided with loops-for fastening onto hooks 8,5` ,provided on corresponding sidesl of bucket carriage. `As the bucke'tis then pulled tow/ardthe stantially the reverse of, that indicated. Thus with the arrangement just described, eitherraising or the` lowering of thetowor may be ltimediently effected merely by the movement of,

bucket within the tower. When the tower is moved to the upright position and anchored, the loops on the ends of cables 80 are disconnected from the hooks i85 on the bucket carriage and hung over hooks 81 attached to the guide rails 3| at a convenient point as shown in Fig. 2.

Having described the invention in what are considered to be certain preferred embodiments thereof it is desired that it be understood that the specific details shown and described are merely illustrative and that the invention may be carried out by other means.

What we claim is:

1. An elevator arrangement comprising a tower adapted to be pivotally secured adjacent one end thereof to a vehicle and being further adapted to be transported horizontally upon said vehicle and shifted to a vertical operative position, said tower comprising a rectangular arrangement of parallel uprights, said tower being open along the front side thereof, a pair of slides mounted upon the uprights on the opposite sides of said front sideof said tower, a hopper pivotally mounted adjacent its upper end on said slides, means detachably fastening said hopper adjacent its lower end on said slides, said hopper having a width slightly less than the distance between the uprights delning the front side of said tower whereby upon disconnection of the lower end of said hopper from said slides said the front hoppermay be'pivotally' swung-` between said front uprights; Y 1 f 2. An'elevator comprising a plurality of parallel uprights defining a tower structure havingA a longituf'iinall elevatorshaft therein?, said shaft "being-g open along the `iront side of said tower, 'a

thereof, a framework secured to said hopper means including a pair of arms pivotally-secured 'to` said framework for detaohably fastening said framework `to the lower portion of said slides, said hopper having a width slightly less than Vthe'distance between said slides whereby, upon detachment of said framework from said slides,

'saidv hopper maybe pivotal-1y swung between said lslides into said shaft;

3. In a device of the class Idescribed, the combination comprising'- a tower formed of a pluralityof paralleluprights dening a vstructure having a longitudinal elevator shaft therein,

means for pivotally mounting said tower on one endA oi `a vehicle for movement between a horizontal transporting position and vertical operative position; As aidelevator shaft being open along `side of lsaid tower, a hoppenrneans for mounting said hopper upon the front side of said' tower, said `mounting means" comprising a `pair of `slides engagingajpair of the tower uprghts on theopposite sidesof said front side,

`means pivotally mounting said hopper adjacent .its errer `securing the iower end of said hopper ytosai'd end on said s1-idas, `means releasably slides, sai-d hopper Vhavingr a width less than the width of the open face of said tower, and being adapted to swing through `the open face ofsaid tower and-'intosaid shaft on movement of said tower structure to said horizontal position.

f4; In aidevicelof the class ,describedthe combination comprising .an open faced tower adapted to be pivotally mounted on one end of a transporting vehicle for movement between a horizontal transporting position and a vertical operative position, a hopper pivotally mounted across the open face of said tower, said hopper having a, width less than the width of the open face of said tower and being adapted to swing into the tower through the open face thereof on movement of said tower to said horizontal position.

5. The combination comprising a tower movable between a horizontal inoperative position and a vertical operative position, said tower including a pair of spaced apart front uprights, a hoist bucket mounted within said tower, a h opper for receiving bucket contents, adjustable means for supporting said hopper in an operative position across the front side of said tower, said hopper having a width less than the distance between said uprights, said hopper being movable to an inoperative position within said tower when in said horizontal position.

6. An elevator comprising a plurality of parallel uprights defining a tower structure having a longitudinal elevator shaft therein, said shaft being open along the front side, a pair of slides mounted upon a pair of said uprights on the opl supporting said hopperin an operative position in Vfront of said tower structure.- said hopper havengaging said bucket as said bucket carriage isA movedupwardly within said tower for electing tilting ofv said bucket and the unloading orf the contents thereof into said receiver, 'said engaging i means comprising an arm pivotally secured to said receiver for movement between a bucket eriy positionV wherein the bucket gaging position and can be moved upwardly past said receiver. without engagement therewith. Y

8. In a device of the class described, the combination comprising a tower including a plurality pluralityof paralof parallel uprights, a pair of front uprights deiining an open side for said tower, a bucket carriage slidably mounted within said tower, abuck- Vet pivotally mounted within said carriage so as normally to assume an upright position, said bucket being tiltable through said open side of said tower, a hopper arrangedwholly on the outsideof said tower adjacent the Afront side thereof, a roller arm pivotally secured to said hopper, means for securing said roller arm in a position for engaging said bucket as said carriage is moved upwardly for eiecting tilting of said bucket to a dumping position, said roller arm being also adapted to be pivotally moved to a bucket nonengaging position. v

9. In a device of the class described, the combination comprising a vehicle, a tower adapted to be transported in a horizontal inoperative position upon said vehicle, a hinged connection between a point intermediate the ends of said tower ,and an upper portionf said vehicle to allow` the tower to be' raised to' a'vertical operative position,

abuck'etcarriage slidably'mounted within said tower, means for effecting movemento'f jsaid bucket carriage longitudinally' of saidftower, meanslfor effecting pivotal movement vofsaid tower to said operative position comprising a vcable having one end secured to the lower end of said tower and'threaded about idler pulleys on said vehicle and4 on said tower, and. mean'sfor securing the other end of said cable to said, bucket carriage' whereby movement of said, carriage within said tower will effect pivotalmovement of saidntower aboutsaid hinged connection.

, 1o. I n a device efi the elass described theepi'n'- binationA comprising a, tower pivotally mounted intermedi-ate its ends to an upper portion of a ,supporting vehicle, said tower being'aiilapted to be transported horizontally uponsaid vehicleand shifted toa vertical operative position, abucket V'carriage longitudinally `movable within, said tower, meansgforrraising said bucketmcarriage Awithin said tower, and means for raising said gtower to a vertical' operative position comprising ay :cable extending between the lower end of said tower and a'lower portion of saidvehicle, and

'means for fastening one end of saidcable to said bucket carriage whereby'movement oi s'aid bucket carriage towardthe upper'end'oi said tower will cause said tower to bev raised to said vertical operative position. HAROLD A. WAGNER. `GUsTAvlii. H. WAGNER.

. REFERENCES ciTn The followingfreierences are of record the le of this patent:

UNITED STATES PATENTS Number Name Y "Date 1,570,302 Hale Jn. 19, 1926 2,327,476' 'Y Wagner et al.Y 'A'ug 24,1943

' 2,327,477 Wagner Q. OC. 3, 194,3

2,357,583 France, 'septfs, 1944 y2,413,149 Y 

